Richard Marx, noted songwriter/hitmaker responsible for classics such as “Right Here Waiting” and “Hazard,” was on a Korean Air flight with his wife, longtime MTV personality Daisy Fuentes, when chaos erupted.

Apparently, an unruly passenger began acting violently, attacking passengers and crew members until Marx and Fuentes were able to subdue the man for the rest of the flight — totaling more than FOUR HOURS in their efforts. That’s intense.

Even more intense are the images from the experience that Marx shared on his Twitter page:

You will be hearing about our flight#480 on @KoreanAir_KE . Passenger next to us attacked passengers and crew. Crew completely ill trained.